--- /dev/null
+## Copyright (C) 2009 Lukas F. Reichlin
+##
+## This file is part of LTI Syncope.
+##
+## LTI Syncope is free software: you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## LTI Syncope is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with LTI Syncope. If not, see <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## Power of a polynomial. For internal use only.
+
+## Author: Lukas Reichlin <lukas.reichlin@gmail.com>
+## Created: September 2009
+## Version: 0.1
+
+function p = mpower (a, b)
+
+ if (! isa (b, "double") && ! is_real_scalar (b))
+ error ("tfpoly: mpower: power must be a natural number");
+ endif
+
+ c = uint64 (b);
+
+ if (c != b)
+ error ("tfpoly: mpower: power must be a positive integer");
+ endif
+
+ if (c == 0)
+ p = tfpoly (1);
+ return;
+ endif
+
+ p = a;
+
+ for k = 1 : (c-1)
+ p.poly = conv (p.poly, a.poly);
+ endfor
+
+endfunction
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